I tried to upgrade my D2Plug from the delivered Ubuntu 10.xxx Ubuntu linux to the new Ubuntu 12.04.1. But after this procedure my D2Plug was not able to start anymore.Before I have done this I also updatet the 10.xxx to the newest 10er service pack.Is it generally impossible to do distributionsupgrades on ARM systems?

How is the preferred possibility to install a new Linux system on a D2Plug?I would also use a Debian if necessary. Do I have to generate a Kernel Image and Root Filesystem from scratch?